can you clarify this question? it’s quite confusing, but i’d like to help you.
You plug 7 in for x
Therefore, f(7)=7-2=5
So f(7)=5
Make 37.5% into decimal form : Since it is being marked up, add 100% = 1.375
1.375 x 80
1.375
x 80
_________
0000
+11000
_________
110.000
80 marked up by 37.5% is 110.
a) 2.2
ion k da 2nd I hope it helps